[leetcode]-27. Remove Element（C语言）

Given an array and a value, remove all instances of that value in-place and return the new length.

Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory.

The order of elements can be changed. It doesn't matter what you leave beyond the new length.

Example:

Given nums = [3,2,2,3], val = 3,

Your function should return length = 2, with the first two elements of nums being 2.

代码如下：

int removeElement(int* nums, int numsSize, int val) {
    int i,j,k;
    for(i=0;i<numsSize;i++)
    {
        if(nums[i]==val)
        {
            for(j=i+1;j<numsSize;j++)
            {
                nums[i]=nums[j];
            }
            numsSize--;
            i--;
        }
    }
    return numsSize;
}